Add null check to CreateWheelScroll

Author: RenderMichael

dotnet/src/webdriver/Interactions/WheelInputDevice.cs

@@ -89,8 +89,14 @@ public Interaction CreateWheelScroll(int deltaX, int deltaY, TimeSpan duration)
         /// <param name="deltaY">The distance along the Y axis to scroll using the wheel.</param>
         /// <param name="duration">The duration of the scroll action.</param>
         /// <returns>The <see cref="Interaction"/> representing the wheel scroll.</returns>
+        /// <exception cref="ArgumentNullException">If <paramref name="target"/> is <see langword="null"/>.</exception>
         public Interaction CreateWheelScroll(IWebElement target, int xOffset, int yOffset, int deltaX, int deltaY, TimeSpan duration)
         {
+            if (target is null)
+            {
+                throw new ArgumentNullException(nameof(target));
+            }
+
             return new WheelScrollInteraction(this, target, CoordinateOrigin.Element, xOffset, yOffset, deltaX, deltaY, duration);
         }